Which approach to psychology emphasizes the role of the physical processes, such as brain and nervous system functioning?

The Biological Approach

Explanation:

According to the biological approach everything happening in our minds on a psychological level happens because of some genetic and physiological reason. A person's personality when looked from the biological perspective is the result of the brain structures and neural mechanisms of the person.

No approach takes into account the physiological and genetic perspective while dealing with psychology except the biological approach.